Elements, Compounds, and Mixtures

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded together in a fixed ratio.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

Is sugar (C12H22O11) an element, compound, or mixture?

Back

Compound

Front

What is the chemical formula for sulfuric acid?

Back

H2SO4

Front

How many elements are in the compound Na2CO3?

Back

3 (Sodium, Carbon, Oxygen)

Front

What is the difference between a homogeneous mixture and a heterogeneous mixture?

Back

A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has a non-uniform composition.

Front

Give an example of a compound.

Back

Water (H2O) is an example of a compound.

Front

What is a mixture of elements?

Back

A mixture of elements is a combination of two or more elements that are not chemically bonded, such as a salad.

Front

What is a mixture of compounds?

Back

A mixture of compounds is a combination of two or more compounds that are not chemically bonded, such as air.